Peptides with
nothing to hide.
01
Supplier COA available
Read the original supplier report alongside our testing records.
02
Independent third-party testing
We commission testing from an independent laboratory, separate from the supplier. Review the results by lot.
03
Rejections published
Our records include rejected batches, including the GHK-Cu lot we discarded before sale.
Research catalog
-
Double Agonist – 10mg
In stock$55.00 -
Triple Agonist – 10mg
In stock$65.00 -
BPC‑157 – 10 mg
In stock$49.00
From our testing records
99.65% purity.
We rejected the batch.
GHK-Cu lot sr-ghkcu-260309-001 passed its purity test, but cadmium measured 1.312 ppm against the report’s 0.5 ppm limit.
We discarded the lot before sale. The failed report remains public.
GHK-Cu · 100 mg
Rejected
sr-ghkcu-260309-001
| HPLC purity | 99.65% |
| Cadmium result | 1.312 ppm |
| Report’s cadmium limit | ≤ 0.5 ppm |
| Analysis date | May 11, 2026 |
| Laboratory | ILS Laboratories |
| Source Research disposition | Discarded — never sold |
Analytical results refer to the submitted sample. “Discarded — never sold” is Source Research’s business statement, not laboratory proof of disposal or sales history. The report’s screening limit is not a human-use safety standard.
Reading the records
Before you compare
the reports.
Are both COAs available for every lot?
Not every listed lot currently has an Origin COA. Our testing table marks unavailable supplier reports as “n/a.” Open each linked document to review its scope; supplier and independently commissioned panels can differ.
Does a COA mean every vial was tested?
No. A COA reports results for the sample submitted to the laboratory. Our testing table lists the sampled-vial count and lot size. A result does not establish that every vial has been individually tested.
Does high purity mean all tests passed?
No. The rejected GHK-Cu sample reported 99.65% HPLC purity while exceeding the stated cadmium limit. Read the individual results and methods, rather than relying on a purity figure or an overall label. HPLC purity is not the mass fraction of everything in a vial; PCR screening alone does not establish sterility.
How do I connect a supplier lot to a Source Research lot?
Compare the identifiers in both documents and the product label. Supplier and Source Research identifiers can differ; that relationship needs a documented mapping. If it is unclear, request clarification before ordering rather than assuming the reports refer to the same lot.
Are these products intended for human use?
No. These materials are for laboratory research only, not human or veterinary use or consumption. Laboratory testing does not establish safety or efficacy for those uses.